ROMOSS Power Bank, 20,000mAh PD 22.5W Portable Phone Charger with USB C 3 Outputs & 3 Inputs, External Battery Pack for iPhone 15/14/13/12, iPad, Samsung Galaxy and More

The ROMOSS 30000mAh Power Bank PEA30 is an impressive product that is definitely worth owning. Its large capacity makes it perfect for powering up devices when you're on the go or when you need to have backup power available. One of the best things about this product is that it can live up to its claims. It delivers a ton of power, and it does so flawlessly.I've been using this power bank primarily to power up an RGB office chair, and it has worked flawlessly for that purpose. The chair can stay lit up without the need for a wall outlet, which is really convenient for an office chair with a cool RGB effect. I've also used it as a bucket to hold thunderbolts when I need power somewhere that power isn't readily available, and it has performed perfect in that regard as well.Another great feature of this power bank is the LCD screen that shows you exactly how much energy is left in the device. It's a simple, yet effective way to keep track of your power levels, and it's something that I find really useful. I don't need to look at blinking lights and assume it has 90% battery life versus 80%. It simply states "100" at full charge and starts counting down until it hits 0. That's good to know. It also displays AMPs and VOLTs with usage by pressing the button on the side.If I had to complain about anything with this product, it would be the instructions that were provided. They were lacking in detail from what I remember and didn't provide much guidance on how to use the device. However, it was pretty easy to figure out how to charge the power bank just by looking at the icons on the device. I didn't really try to study the instructions either so it could just have been me.I also found the black 6-inch USB C cable that comes with the product to be kind of subpar. It doesn't seem to carry a lot of energy, and when I tried to use it to fast charge my cell phone, the charging rates on my cellphone were really slow. Like really bad. It's better to invest in a better USB C 100 watt cable to get more energy into this product faster. I've included a decent cable in the links below that works good for transporting heavy power to whatever USB C you plug into it.That being said, I charged the power bank a few days ago and used it for some pictures of another Amazon product, and it lost no energy between uses and sitting idle. It seems to be pretty good at holding on to its charge without any issues. This gives me peace of mind knowing that if I need to grab it in a hurry, it'll be readily available with multiple days of phone charging before it's completely out of juice.I love owning the ROMOSS 30000mAh Power Bank PEA30. It's practical, well-built, and offers everything that I could ever want from a power bank. Its large capacity and reliable performance make it an excellent choice for anyone who needs a lot of power on the go. It's definitely a product that I would recommend to others who are looking for a high-quality power bank.Supplemental Items (USB C Cable that offers better charging):https://www.amazon.com/gp/product/B0B79QMZBY - Better USB C cable to charge with (100 watt)https://www.amazon.com/gp/product/B0BC1D2WGR - Connectors for USB C cable (recommended)Other items shown (RGB Rod powered by USB):https://www.amazon.com/gp/product/B099DLH3PD - RGB Rodhttps://www.amazon.com/gp/product/B07JZCNPNV - RGB Controller (requires item below)https://www.amazon.com/gp/product/B07GWMX3G3 - USB to SATA Power CableIf you liked the chair (Not recommended but it looks really cool put together):https://www.amazon.com/gp/product/B088LNF2N5 - Chair (poor quality & uncomfortable)https://www.amazon.com/gp/product/B09TKDYXTG - Bottom Chair Base (Recommended)https://www.amazon.com/gp/product/B09D3HRYFZ - Piston (Recommended)https://www.amazon.com/gp/product/B07BLRZTCY - Wheels (Not recommended - poor paint job)

It charged up pretty fast. Have not used it yet to power any devices but look forward to seeing its performance. I like that it’s not too bulky and appears well built.

This thing is an absolute lifesaver.This is the easiest thing you can throw in your backpack and take it anywhere and be sure that you have power. It is super functional and the build quality is out of this world. Furthermore, it is compatible with every device. The white color is super nice and it looks cool.

This is probably the best value for a 30,000 mAh power bank.It has enough output power (PD 30 Watt Fast Charging) to charge a conventional laptop like my Lenovo IdeaPad.It has anywhere from a 75-78% yield, which means that you will reliably get between 22,500-23,400 mAh out of the battery bank before it is empty. I tested this unit with multiple charge and discharge cycles and it consistently gave me 75% or above each time. This is good, as no power bank yields the full stated mAh when charging in the real world. This one performs better than most power banks I've tested.Averaging around 23,000 mAh means that you can recharge a typical modern smartphone like a Samsung S22 about five or six times from a low battery level. For a typical person, this is about 7-10 days worth of charging power in a small, chunky battery bank.Verdict: Recommended

I went homeless during covid. #1 priority to have a phone, and keep it charged. That made my charger the top pickpocket target. I kept saving for another, & another, and now a year into my own apartment, bought one to go out on errands on short notice. For the first time I bought one used. Tbh, that was the first time I've seen a return of these for sale (4 year period). Get a 70watt or 100watt charger bc this will take up to 30mvk input. Full charge in about 3½ hours. Would charger my phone 3x & 2, 40watt Bluetooth 2x before I would need to recharge.

Purchased this power supply in October of 2023. Never had an issue with it. Used it occasionally and kept it charged.Today I opened my desk cabinet and found the unit looks like it exploded.The power supply was kept in an air conditioned room, never exposed to sunlight, and never dropped or banged around. And I was the only user at my home. It was a heavy unit, worked well, no issues except it broke open. Contacted vendor with no response. Luckily it didn’t catch on fire. Word to the wise, be careful where you store these things.

I bought this power bank in Aug. 2023 for its capacity. However ROMOSS left me down. Used it once after it's been fully charged in Nov. 2023. It will go to 0% in matter of mins and it does the same over and over. Emailed support at romoss.com, hopefully they will stand behind their 12 month warranty. I will update here if they do or i will take my business elsewhere.* This is a follow up review: Fantastic customer service that deserves 5 star rating.After an email through romoss.com/support, Romoss Direct on Amazon followed up with me and offered to send me a replacement unit. However Amazon policy does not allow seller to ask for a customer's personal information including email or phone number. I was told that the seller does not have my shipping info due to Amazon processed the order. Still I didn't provide my personal info.Romoss went above and beyond by offering me refund instead. Now I can and will buy from this seller again. Thanks Rachel.

I needed a power bank for my laptop for when I'm traveling and don't have easy access to an outlet. This worked like a charm and fully charged my laptop from almost dead with power to spare, and charged my phone at the same time! Would definitely purchase again.